Early Spring Symptoms

New growth on vines with PD is late to bud out.

PD spring symptom

New leaves on PD vines are stunted, more yellow than normal, and deformed in shape. Interveinal areas of leaves may be more yellow than normal leaves, much like zinc deficiency symptoms.

PD spring symptom on leaf (Photos by Jack Clark)

Normal lead at left, PD leaves in center and right.

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